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參數(shù)資料
| 型號(hào)： | FST3306 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 2-Bit Low Power Bus Switch |
| 中文描述： | 2位低功耗總線開關(guān) |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大小： | 225K |
| 代理商： | FST3306 |
3
www.fairchildsemi.com
F
AC Electrical Characteristics
Note 6:
This parameter is guaranteed. The bus switch contributes no propagation delay other than the RC delay of the typical On resistance of the switch
and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). The specified limit is calculated on this basis.
Capacitance
AC Loading and Waveforms
Input driven by 50
source terminated in 50
.
C
L
includes load and stray capacitance.
Input PRR
=
1.0 MHz t
w
=
500 ns.
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF, RU
=
RD
=
500
Min
Typ
Figure
Number
Symbol
Parameter
V
CC
(V)
4.0
–
5.5
Units
Conditions
Max
0.25
t
PHL
,
t
PLH
t
PZL
,
t
PZH
t
PLZ
,
t
PHZ
Prop Delay Bus to Bus
(Note 6)
ns
V
I
=
OPEN
Figures
1, 2
Output Enable Time
4.5
–
5.5
4.0
4.5
–
5.5
0.8
0.8
0.8
2.5
3.0
3.1
4.2
4.6
4.8
ns
V
I
=
7V for t
PZL
V
I
=
0V for t
PZH
V
I
=
7V for t
PLZ
V
I
=
0V for t
PHZ
Figures
1, 2
Output Disable Time
ns
Figures
1, 2
4.0
0.8
2.9
4.4
Symbol
Parameter
Typ
2.5
Max
Units
pF
Conditions
C
IN
Control Pin Input Capacitance
V
CC
=
0V
C
I/O
(OFF)
Port OFF Capacitance
6
pF
V
CC
=
5.0V
=
BE
C
I/O
(ON)
Switch ON Capacitance
12
pF
V
CC
=
5.0V, BE
=
0V
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